*,body{
	padding: 0;
	margin: 0;
}
img{
	display: block;
}

html{
	font-size: 32px;
}
bold{
	font-weight: bold;
}
/* flex */
.f{
	display: flex;
}
.f_warp{
	flex-wrap: wrap;
}
.f_start {
	justify-content: flex-start;
}
.f_align{
	justify-content: space-between;
}
.f_center{
	justify-content: center;
}
.f_align_center{
	align-items: center;
}
.f_align_end {
	align-items: flex-end;
}
.f_column{
	flex-direction: column;
}
.f_shrink0 {
	flex-shrink: 0;
}

@media (min-device-width:375px) {
	html{
		font-size: 37.5px;
	}
}
@media (min-device-width:414px) {
	html{
		font-size: 41.4px;
	}
}